Save Kettle with Bad Solder Joint

[butterblum]

Anyone know if there is a way to save a kettle with a joint that has burnt flux residue embedded in it?
I tried a neat little coil of solder around my triclamp fitting, and evenly brought the surface of the kettle up, and then applied heat to the fitting itself, but the solder took a long time to really melt, and I accidentally burned the flux instead.

 

[jekeane]

I know dremel makes a stainless brush tool that you may be able to use to clean it up. I used one to get some small embeded iron particles our of a keg once.